1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.kernel.security.jaas;
24  
25  import java.io.Serializable;
26  
27  import java.security.Principal;
28  import java.security.acl.Group;
29  
30  import java.util.Collections;
31  import java.util.Enumeration;
32  import java.util.HashMap;
33  import java.util.Iterator;
34  import java.util.Map;
35  
36  /**
37   * <a href="PortalGroup.java.html"><b><i>View Source</i></b></a>
38   *
39   * @author Brian Wing Shun Chan
40   */
41  public class PortalGroup
42      extends PortalPrincipal implements Group, Serializable {
43  
44      public PortalGroup(String groupName) {
45          super(groupName);
46      }
47  
48      public boolean addMember(Principal user) {
49          if (!_members.containsKey(user)) {
50              _members.put(user, user);
51  
52              return true;
53          }
54          else {
55              return false;
56          }
57      }
58  
59      public boolean isMember(Principal member) {
60          boolean isMember = _members.containsKey(member);
61  
62          if (!isMember) {
63              Iterator<Principal> itr = _members.values().iterator();
64  
65              while (!isMember && itr.hasNext()) {
66                  Principal principal = itr.next();
67  
68                  if (principal instanceof Group) {
69                      Group group = (Group)principal;
70  
71                      isMember = group.isMember(member);
72                  }
73              }
74          }
75  
76          return isMember;
77      }
78  
79      public Enumeration<Principal> members() {
80          return Collections.enumeration(_members.values());
81      }
82  
83      public boolean removeMember(Principal user) {
84          Principal principal = _members.remove(user);
85  
86          if (principal != null) {
87              return true;
88          }
89          else {
90              return false;
91          }
92      }
93  
94      private Map<Principal, Principal> _members =
95          new HashMap<Principal, Principal>();
96  
97  }